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sidebar_position: 1
sidebar_label: 2024
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# 2024 Changelog

### ClickHouse release v23.8.12.13-lts (bdbd0d87e5d) FIXME as compared to v23.8.11.28-lts (31879d2ab4c)

#### Bug Fix (user-visible misbehavior in an official stable release)

* Improve isolation of query cache entries under re-created users or role switches [#58611](https://github.com/ClickHouse/ClickHouse/pull/58611) ([Robert Schulze](https://github.com/rschu1ze)).
* Fix string search with const position [#61547](https://github.com/ClickHouse/ClickHouse/pull/61547) ([Antonio Andelic](https://github.com/antonio2368)).
* Fix crash in `multiSearchAllPositionsCaseInsensitiveUTF8` for incorrect UTF-8 [#61749](https://github.com/ClickHouse/ClickHouse/pull/61749) ([pufit](https://github.com/pufit)).

#### CI Fix or Improvement (changelog entry is not required)

* Backported in [#61428](https://github.com/ClickHouse/ClickHouse/issues/61428):. [#61374](https://github.com/ClickHouse/ClickHouse/pull/61374) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Backported in [#61484](https://github.com/ClickHouse/ClickHouse/issues/61484): ... [#61441](https://github.com/ClickHouse/ClickHouse/pull/61441) ([Max K.](https://github.com/maxknv)).

